540314251 has 2 divisors, whose sum is σ = 540314252. Its totient is φ = 540314250.

The previous prime is 540314249. The next prime is 540314273. The reversal of 540314251 is 152413045.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540314251 - 2¹ = 540314249 is a prime.

Together with 540314249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (540314351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270157125 + 270157126.

It is an arithmetic number, because the mean of its divisors is an integer number (270157126).

Almost surely, 2^540314251 is an apocalyptic number.

540314251 is a deficient number, since it is larger than the sum of its proper divisors (1).

540314251 is an equidigital number, since it uses as much as digits as its factorization.

540314251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 540314251 is about 23244.6606987497. The cubic root of 540314251 is about 814.4832188739.

Adding to 540314251 its reverse (152413045), we get a palindrome (692727296).

The spelling of 540314251 in words is "five hundred forty million, three hundred fourteen thousand, two hundred fifty-one".